FLEx Lighting has created an illuminated optical film that may eliminate the need for reading lights with e-ink readers (amongst other applications).  The 50 micron film is flexible, edgeless, and invisible when turned off and produces a soft, low uniform light when on using a single low power consuming LED .  It can be implemented either as a back-light or a front-light and integrates with touchscreens.
The Gadgeteer, FLEx Lighting Illuminated Optical Film â" A Bright e-Reader Addition
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